Uncovering Denials: OIG Reports Reveal Alarming Trends in Medicaid Managed Care Plans

Published in Government Relations on August 25, 2023

In 2022, the OIG released a report outlining their findings which concluded that Medicare Advantage plans were routinely denying authorizations requests and claims for items that would be covered by traditional Medicare Fee For Service (FFS). On July 17, 2023, the OIG released a similar report which shows something similar may be happening within Medicaid Manage Care plans. The three main things that they concluded from their research was that within Medicaid managed care programs:

  1. A high number and rate of denied prior authorization (PA) requests by some MCOs, some of which very likely should have been approved,
  2. limited oversight of prior authorization denials in most States, and
  3. limited access to external medical reviews and a cumbersome appeal and/or state fair hearing process, which may deter providers and or Medicaid patients from pursuing that option.

While conducting their analysis, the OIG looked at authorization and claims data from seven parent companies, namely Molina, CareSource, UHC, Centene, Anthem/Elevance, Aetna, and AmeriHealth Caritas. These parent companies represent 115 Medicaid MCOs in 37 states and cover nearly 30 million people[AR1] , roughly 36% of the total number of Medicaid lives. Some additional findings and statistics from the OIG’s Medicaid report included:

  • MCOs denied one out of eight (12.5%) requests for prior authorization (PA) in 2019.
  • MCOs fully or partially denied approximately 2.2 million PA requests in 2019.
  • 12 MCOs had PA denial rates greater than 25%—twice the overall rate.
  • Most State Medicaid agencies reported that they did not routinely review the appropriateness of a sample of MCO denials of PA requests.
  • Many states did not collect and monitor data on these decisions.
  • Absence of oversight of MCO decisions on PA requests presents a limitation that can allow inappropriate denials to go undetected in Medicaid managed care.
  • Most State Medicaid agencies reported they do not have a mechanism for patients or providers to submit a PA denial to an external medical reviewer independent of the MCO.
  • Although all State Medicaid agencies are required to offer State fair hearings as an appeal option, these administrative hearings may be difficult to navigate and burdensome on Medicaid patients. The OIG reported that Medicaid enrollees appealed only a small portion of PA denials to either their MCOs or to State fair hearings.
  • Seven of Molina’s 12 MCOs had PA denial rates greater than 25%.

As many of you are aware, VGM has participated in several meetings and discussions with CMS over the past 12 months around the topics of improper denials of PA and claims within managed Medicare and managed Medicaid, general lack of oversight for these plans, and overall network adequacy. We will continue to use findings like the ones outlined above along with other examples provided by our members to continue our discussions with CMS representatives, with the goal being to reduce or eliminate these issues within managed care in the future. Please continue to provide us with those examples of improper denials and access-to-care issues resulting from inadequate provider networks.

From Our Experts

Congratulations to CAMPS On This Important Legislative Victory thumbnail Congratulations to CAMPS On This Important Legislative Victory The signing of AB 1794 is another reminder of the critical role state associations play in shaping healthcare policy, removing barriers to patient care, and ensuring providers have a seat at the table when important decisions are made. Legislative successes like this do not happen by accident. They are the result of engaged members, strong advocacy efforts, and collaboration with policymakers to address real-world challenges facing providers and the patients they serve. S.247, Choices for Increased Mobility Act of 2025, Passes U.S. Senate thumbnail S.247, Choices for Increased Mobility Act of 2025, Passes U.S. Senate S.247, Choices for Increased Mobility Act of 2025 has passed in the Senate through unanimous consent. It now heads to the President to be signed into law. Introduced in the Senate by Sen. Tammy Duckworth (D-IL), The Choices for Increased Mobility Act of 2025 would... August Recess Recap: Building Relationships, Advancing Advocacy thumbnail August Recess Recap: Building Relationships, Advancing Advocacy As Congress worked through the August recess, the VGM Government Relations team remained actively engaged in securing meetings and building relationships with legislators, candidates, and key congressional staff across the country. This summer, the team made a strategic decision to focus getting a strong balance between Republican and Democratic offices, recognizing the importance of broadening support for DMEPOS priorities and ensuring policymakers from both parties understand the challenges.. Introducing Patient Voices: Access to HME Matters thumbnail Introducing Patient Voices: Access to HME Matters The VGM Government Relations team is excited to announce Patient Voices: Access to HME Matters, a new way for patients, providers, vendors, caregivers, and industry partners to share their experiences with home medical equipment. Every story matters. AAHomecare Survey Results of RID Program thumbnail AAHomecare Survey Results of RID Program Thank you to AAHomecare for initiating this important survey demonstrating the significant risks to the DMEPOS industry should Remote Item Delivery Competitive Bid Program (RID CBP) Round 2028 move forward as is. VGM Group is proud to support the survey efforts to maximize provider participation. See below for the survey summary and analysis. Competitive Bidding Update: NPEast and NPWest Updating Licensure Requirement Information for Competitive Bidding Product Categories thumbnail Competitive Bidding Update: NPEast and NPWest Updating Licensure Requirement Information for Competitive Bidding Product Categories Per the Remote Item Delivery Competitive Bidding Program (RID CBP) Round 2028 requirements, bidders must meet all business and product category licensure requirements across every state, the District of Columbia, and the U.S. territories to be eligible to be a contract winner. New CMS Nationwide Probationary Prior Authorization Requirement for Newly Enrolled Suppliers of Certain DMEPOS Items thumbnail New CMS Nationwide Probationary Prior Authorization Requirement for Newly Enrolled Suppliers of Certain DMEPOS Items On Sept. 2, 2026, CMS introduced the Probationary Prior Authorization (PPA) program that will place newly enrolled DMEPOS Suppliers and those undergoing 100% change in ownership on a one-year probationary period. Effective Oct. 15, impacted suppliers will be required to submit a prior authorization request for specific HCPCS codes. OIG Report Signals Increased Fraud Oversight for DMEPOS Suppliers thumbnail OIG Report Signals Increased Fraud Oversight for DMEPOS Suppliers The HHS Office of Inspector General (OIG) recently released a white paper examining ongoing Medicare fraud involving durable medical equipment, prosthetics, orthotics, and supplies (DMEPOS).